Public water system · LA2047003
ActiveDow USA, La Division
At a glance
Dow USA, La Division (PWSID LA2047003) is an active non-transient non-community water system in Iberville Parish County, Louisiana. It reports serving 3,960 people through 5 service connections. Its primary water source is surface water, and EPA lists it as privately owned. EPA's records list 5 violations for this system; 2 are health-based, and the most recent began in March 2015.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
3,960
Service connections
5
Primary source
SW
Surface water
System type
NTNCWS
Non-transient non-community water system
System record
How does Dow USA, La Division compare with other water systems in Iberville Parish County?
By EPA's size categories, Dow USA, La Division is a medium system (3,301 to 10,000 people). Iberville Parish County has 13 active public water systems, and Dow USA, La Division is the 4th-largest of them by population served. Its population served is about 15% above the county average of 3,456 people per system, and accounts for 8.8% of the 44,927 people reported by systems filed under the county. Across Louisiana, the 1,121 active systems average 4,685 people each. Nationally, the average active non-transient non-community water system reports serving 430 people, so Dow USA, La Division is about 9.2 times that figure.
What does “non-transient non-community water system” mean?
A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. Louisiana has 125 active non-transient non-community water systems, 11% of the state's 1,121 active systems. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 53 Louisiana systems (4.7%) list surface water as their primary source.
Who owns and regulates Dow USA, La Division?
EPA lists Dow USA, La Division as privately owned. The LA state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 2 of the 13 active systems in Iberville Parish County (15%) are also privately owned.
Does Dow USA, La Division have drinking water violations?
EPA's records list 5 violations for this system; 2 are health-based, and the most recent began in March 2015. The violations listed here began between January 1994 and March 2015. By type: 2 monitoring and reporting, 1 required treatment not met, 1 contaminant level above the legal limit and 1 public notice, recordkeeping or other. The contaminants or rules involved are Interim Enhanced Surface Water Treatment Rule, Total trihalomethanes (TTHM), Haloacetic acids (HAA5) and Total coliform bacteria (TCR). EPA lists 3 as resolved and 2 as archived. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2015-03-01 | Required treatment not metSingle Turbidity Exceed (Enhanced SWTR) · code 43 | Interim Enhanced Surface Water Treatment Rulecode 0300 | Yes | Resolved |
| 2008-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2008-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2005-08-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1994-01-11 | Public notice, recordkeeping or otherVariance/Exemption/Other Compliance · code 08 | Not reported | No | Archived |
All 5 violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
Dow USA, La Division: frequently asked questions
Who runs Dow USA, La Division?
Dow USA, La Division (PWSID LA2047003) is a non-transient non-community water system privately owned. It is regulated by the LA state drinking water program.
How many people does Dow USA, La Division serve?
Dow USA, La Division reports serving 3,960 people through 5 service connections in Iberville Parish County, Louisiana.
Where does Dow USA, La Division get its water?
EPA SDWIS lists this system's primary water source as surface water. Surface water means the system draws its water from rivers, lakes, streams or reservoirs.
Does Dow USA, La Division have any drinking water violations?
EPA's records list 5 violations for this system; 2 are health-based, and the most recent began in March 2015. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.
Is Dow USA, La Division's water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. EPA's records list 5 violations for this system; 2 are health-based, and the most recent began in March 2015. For current results, consult EPA ECHO, or the LA state drinking water program.
Where can I find Dow USA, La Division's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Dow USA, La Division is a non-transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.
Other water systems in Iberville Parish County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Plaquemine Water System | Iberville Parish | 14,043 | Community | Groundwater |
| East Iberville Water System | Iberville Parish | 6,657 | Community | Purchased groundwater |
| Intracoastal Water System West | Iberville Parish | 6,489 | Community | Surface water |
| Town of Maringouin | Iberville Parish | 3,300 | Community | Groundwater |
| Intracoastal Water System East | Iberville Parish | 2,940 | Community | Groundwater |
| Town of White Castle Water System | Iberville Parish | 2,550 | Community | Groundwater |
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About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Dow USA, La Division, PWSID LA2047003, Louisiana”, https://aquacensus.com/water-systems/louisiana/dow-usa-la-division-la2047003 (data as of October 1, 2026).